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Finding the Fourth Proportional to 22,385,912.70, 33,578,869.05 and 7,241,375.10

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Solution

The fourth proportional to 22,385,912.70, 33,578,869.05 and 7,241,375.10 is: 10,862,062.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,385,912.70 : 33,578,869.05 = 7,241,375.10 : x
  2. Step 2: Convert to fraction form
    22,385,912.70/33,578,869.05 = 7,241,375.10/x
  3. Step 3: Cross multiply
    22,385,912.70x = 33,578,869.05 × 7,241,375.10
  4. Step 4: Simplify right side
    22,385,912.70x = 243,157,186,224,830.62
  5. Step 5: Solve for x
    x = 243,157,186,224,830.62/22,385,912.70
  6. Step 6: Final answer
    x = 10,862,062.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.